Total views : 133

Development of Low Emission Combustor for 110 MWe Gas Turbine

Affiliations

  • All-Russia Thermal Engineering Institute, Mosсow, Russia;, Russian Federation
  • All-Russia Thermal Engineering Institute, Mosсow, Russia;

Abstract


Background: This is a review article. The stages of development and finishing of Low-Emission Combustor (LEC) for GTE- 110 gas turbine with capacity of 110 MW are presented. The main problem referred to in the article is pressure pulsations arising in certain modes of LEC operation. Methods: A detailed account of numerical and experimental research is given for detection of contributing factors on arising of unstable combustion, leading to pressure pulsations with high magnitudes (more than 2% of air pressure at the inlet of LEC). A computational and experimental approach to research of processes in LEC is described. Method of influence upon the border of steady combustion area is shown. Findings: Relationship between position and shape of flame in the volume of flame tube and stability of combustion process is described. Design criterion of stable combustion, allowing comparison of modifications of LEC structures and operation modes is presented. Technical solution developed on the basis of calculation and experimental studies, allowing implementation of stable and low-emission operation of LEC in all design operation modes of Gas Turbine (GT), is presented. The results of tests at pressures up to 450 kPa in the form of diagrams of combustion efficiency and NOx emissions over the entire load range of GT are presented. Improvements: Control method of combustor to achieve these characteristics was developed.

Keywords

3D Simulation, Calculation Studies, Combustor, Experimental study, Flame Front, Fuel-Air Mixture, Gas Turbines, Low Emission Combustion, Pressure Pulsations, Transient Processes

Full Text:

 |  (PDF views: 158)

References


  • Prade B. Gas turbine operation and combustion performance issues. Janson P. Modern Gas Turbine Systems: High efficiency, low emission, fuel flexible power generation.Woodhead Publishing, 2013. P. 383–422. DOI: 10.1533/9780857096067.3.383.
  • Correa SM. A review of NOx formation under gas-turbine combustion conditions. Combustion Science and Technology. 1992; 87(1):329–62. DOI: 10.1080/00102209208947221.
  • Correa SM. Power generation and aeropropulsion gas turbines: From combustion science to combustion technology.Proc Combust Inst. 1998; 27(2):1793–807. DOI: 10.1016/ S0082-0784(98)80021-0.
  • Lefebvre AH, Ballal DR. Gas turbine combustion.Alternative fuels and emissions. 3rd ed. CRC Press, Taylor and Francis; 2010.
  • Stöhr M, Boxx I, Carter C, Meier W. Dynamics of lean blowout of a swirl-stabilized flame in a gas turbine model combustor. Proceedings of the Combustion Institute. 2011; 33:2953–60. DOI: 10.1016/j.proci.2010.06.103.
  • Billoud G, Galland MA, Huu CH, Candel S. Adaptive active control of combustion instabilities. Combust Sci and Tech.1992; 81:257–83. DOI: 10.1080/00102209208951806.
  • Sattelmayer T. Influence of the combustor aerodynamics on combustion instabilities from equivalence ratio fluctuations.J Eng Gas Turb Power. 2002; 125(1):11–9. DOI: 10.1115/1.1365159.
  • Lieuwen T, Yang V, editors. Combustion instabilities in gas turbine engines: operational experience, fundamental mechanisms, and modeling. AIAA. 2006. Available from: http://dx.doi.org/10.2514/4.866807
  • Huang Y, Yang V. Dynamics and stability of lean-premixed swirl-stabilized combustion. Prog Energy Combust Sci. 2009; 35(4):293–364. Available from: http://dx.doi.org/10.1016/j.pecs.2009.01.002
  • Bulysova L, Vasiliev V, Berne A. Methods of experimental data processing of combustion instability. Energetik. 2014; 1:55–5.
  • Bulysova L, Vasiliev V, Berne A. Numerical studies of heat emission process in low-emission combustor. Energetik.2012; 9:29–36.
  • Bulysova L, Vasiliev V, Berne A. Numerical studies of pressure effect on the processes of mixing and heat emission in low-emission combustor. Energetik. 2013; 3:7–13.
  • Bulysova L, Vasiliev V, Berne A. Effect of flame shape on the combustion stability in a low emission combustor. Power Technology and Engineering. 2016; 50(6).
  • Bulysova L, Vasiliev V, Berne A. Effect of air-fuel mixing on NOх yield in a low-emission gas turbine plant combustor.Thermal Engineering. 2016; 63(4).

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.